<!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml1-strict-thymeleaf-spring4-4.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>spring boot</title>
    <link type="text/css" th:href="@{css/jquery}">
</head>
<body>
<span th:text="${username}">hello1</span>
<br>
</body>
</html>